[ 4.13g  2粒 ]

[ 20g[买5粒送5粒]共10粒 ]

[ 40g[买10粒送10粒]共20粒 ]

[ 61.3g[买15粒送15粒]共30粒 ]

[ 80g[买20粒送20粒]共40粒 ]

[ 101.3g[买25粒送25粒]共50粒 ]

[ 201.3g[买50粒送50粒]共100粒 ]

[ 100g[买25送25]亏本共50粒 ]